Arquivos brasileiros de endocrinologia e metabologia · 2014
Evaluation of parathyroid function and mineral metabolism in psychiatric patients using lithium salts.
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Oliveira Thiago Costa de, Campos Neto Ivo Alves de, Aguiar-Oliveira Manuel Hermínio de, Pereira Francisco de Assis
Аннотация
OBJECTIVE: To evaluate parathyroid function and mineral metabolism in psychiatric patients users of lithium salts.
MATERIALS AND METHODS: We measured the serum levels of calcium, ionized calcium, inorganic phosphorus, alkaline phosphatase, albumin, parathyroid hormone (PTH), urea, creatinine, 25-hydroxy-vitamin D and lithium of 35 patients diagnosed with bipolar disorder in use of lithium carbonate (LC) for at least one year (Lithium Group - LG) and 35 healthy subjects (Control Group - CG).
RESULTS: The LG and CG were matched by sex and age. There was only statistic difference in relation to the levels of PTH and ionized calcium, with p < 0.004 and p < 0.03, respectively. Secondary form of hyperparathyroidism (HPT) was found in eight (22.8%) LG patients and in none of the CG. There was no correlation between lithemia, usage time and dosage of LC.
CONCLUSION: Our data demonstrate that lithium may create an imbalance in the parathyroid axis, characterized by elevated levels of PTH.
MATERIALS AND METHODS: We measured the serum levels of calcium, ionized calcium, inorganic phosphorus, alkaline phosphatase, albumin, parathyroid hormone (PTH), urea, creatinine, 25-hydroxy-vitamin D and lithium of 35 patients diagnosed with bipolar disorder in use of lithium carbonate (LC) for at least one year (Lithium Group - LG) and 35 healthy subjects (Control Group - CG).
RESULTS: The LG and CG were matched by sex and age. There was only statistic difference in relation to the levels of PTH and ionized calcium, with p < 0.004 and p < 0.03, respectively. Secondary form of hyperparathyroidism (HPT) was found in eight (22.8%) LG patients and in none of the CG. There was no correlation between lithemia, usage time and dosage of LC.
CONCLUSION: Our data demonstrate that lithium may create an imbalance in the parathyroid axis, characterized by elevated levels of PTH.